A company has offices in two different countries. Suppose that the average age (in years) of the employees at location A is 40.140.140, point, 1 with a standard deviation of 5.55.55, point, 5, and the average at location B is 36.736.736, point, 7 with a standard deviation of 6.36.36, point, 3.
Every month, the company takes separate random samples of 505050 employees from each location for a survey. Each time, they look at the difference in the mean age sampled from each location \left( \bar{x}_\text{A} - \bar{x}_\text{B} \right)(
x
ˉ

A


x
ˉ

B

)left parenthesis, x, with, \bar, on top, start subscript, start text, A, end text, end subscript, minus, x, with, \bar, on top, start subscript, start text, B, end text, end subscript, right parenthesis.
What do we know about the shape of the sampling distribution of \bar{x}_\text{A} - \bar{x}_\text{B}
x
ˉ

A


x
ˉ

B

x, with, \bar, on top, start subscript, start text, A, end text, end subscript, minus, x, with, \bar, on top, start subscript, start text, B, end text, end subscript, and why?

Answers

Answer 1

Answer:

It's approximately normal, because both sample sizes are at least 303030.

Step-by-step explanation:

Khan Academy


Related Questions

The polygons are similar. but they are not necessarily drawn to scale. Find the value of x

Answers

Answer:

x=9

Step-by-step explanation:

Since the polygons are similar, the ratios of their respective sides are equal.

32/24=(x-1)/6

x-1=8

x=9

Which postulate proves these two
triangles are congruent?

Answers

Answer:

D-"HL"

Step-by-step explanation:

HL- This theory states that the hypothenus and one base angle is eual and in this case its true!!

I hope im right!!    

A polynomial f (x) and one or more of its zeros are given.
f(x)=x4 - 6x° +52x² +36x – 348
3-7i is a zero
Part: 0/3
Part 1 of 3
(a) Find all the zeros. Write the answer in exact form.
If there is more than one answer, separate them with a comma.
Select "None" if applicable.
The zeros of f(x):

Answers

Answer:

+52

Step-by-step explanation:

At the farmer's market 1., dozen eggs cost $3.75. What is the cost for 1 dozen eggs?
A $2.25
B. $2.50
C. $4.75
D. $5.50

Answers

C is your answerrrrrr

a student Miss 10 problems on an English test and received a grade of 44%. If all the problems were of equal value, how many problems were on the test ​

Answers

Answer:

Rounded to the nearest integer, the test had 18 problems in all.

Step-by-step explanation:

Given that a student missed 10 problems on an English test and received a grade of 44%, if all the problems were of equal value, to determine how many problems were on the test the following calculation must be performed:

100 - 44 = 56

56 = 10

100 = X

100 x 10/56 = X

1,000 / 56 = X

17.85 = X

Thus, rounded to the nearest integer, the test had 18 problems in all.

Can someone please Simplify (a^2)^5

Answers

Answer:

[tex]a^{10}[/tex]

Step-by-step explanation:

[tex]a^{2*5}[/tex]

Answer:

Step-by-step explanation:

the rule for an exponent raised to another exponent is

(a^b)^c = a^(bc)

In this case

(a^2)^5

a^(2(5))

a^(10)

Solve for x. Round to the nearest tenth. 2.
39°
27

Answers

Answer:

33.3

Step-by-step explanation:

Reference angle = 39°

Opposite = 27

Adjacent = x

Apply TOA. Thus:

Tan 39 = Opp/Adj

Tan 39 = 27/x

x * Tan 39 = 27

x = 27/Tan 39

x = 33.3422232 ≈ 33.3 (nearest tenth)

Can someone help me? I’ll reward 10 points + brainalist (I want an explanation and answer)

Answers

Answer:

B

Step-by-step explanation:

The area of a circle is

[tex]\pi {r}^{2} [/tex]

where r is the radius.

A radius is a line segment from the center of the circle to the circumference of a circle(any point that is on the arc).

It is given that x=1/3 so we use this equation.

Substitute 22/7 for pi

[tex] \frac{22}{7} ( \frac{1}{3} ) {}^{2} [/tex]

[tex] \frac{22}{7} \times \frac{1}{9} [/tex]

[tex] \frac{22}{63} [/tex]

Area is squared so we use in^2.

B is the answer

40 cm equals how many mm

Answers

Answer:

40 cm equals 400 millimeters

I hope this helps you

The answer is 400
Explanation: multiply the length by 10

help plss i need help in question 2

Answers

Answer:

Tropic Fresh Fruit Punch

Step-by-step explanation:

You have to find how many cups of concentrate both brands use per cup of water. To do that, you divide the cups of concentrate by the cups of water.

Tropic Fresh Fruit Punch - 22/10=2.2

Merry Berry Fruit Punch - 13/6=2.17 (rounded to the nearest hundredth)

Since 2.2 is bigger than 2.17, Tropic Fresh Fruit Punch has the more fruitier concentration of punch.

PLS HELP!! :// i rlly need it!

Answers

Answer:

the value of b is 74 it won't let me help

Select the correct answer.
Hillary and her friends are trying to decide whether to go bowling or to a movie. Which method could they use to fairly decide which activity they
will do?
A.Flip a coin twice. If the coin lands on heads both times, they will go bowling. If it doesn't, they will go to a movie.
B.Flip a coin twice. If the coin lands on heads one time and tails one time, they will go bowling. If it doesn't, they will go to a
movie.
C.Flip a coin three times. If the coin lands on tails all three times, they will go to a movie. If it doesn't, they will go bowling.
D.Flip a coin three times. If the coin lands on heads twice and tails once, they will go to a movie. If it doesn't, they will go bowling.

Answers

Answer:

D.

Step-by-step explanation:

I would have to say D is the best answer since then it's truly based on luck and it's almost as if it's being flipped once

Hillary and her friends could flip a coin twice to fairly decide which activity they will do. If the coin lands on heads one time and tails one time, they will go bowling. If it doesn't, they will go to a movie.

What is probability?

Probability is the ratio that shows the likelihood of an event occurring out of all the other possible events.

Hillary and her friends need to use a fair method to determine which activity to do. For this, the probability should be 1/2. We should observe the given options and find which is the fairer method.

In the case of option A, the probability of that event occurring is 1/4.In the case of option B, the probability of that event occurring is 1/2.In the case of option C, the probability of that event occurring is 1/8.In the case of option D, the probability of that event occurring is 3/8. We can see that Option B is the only event having a probability of 1/2.

Therefore, Hillary and her friends could flip a coin twice to fairly decide which activity they will do. If the coin lands on heads one time and tails one time, they will go bowling. If it doesn't, they will go to a movie. The correct answer is Option B.

Learn more about probability here: https://brainly.com/question/24756209

#SPJ2

help ill give extra points

Answers

Answer:

1 and b

2 and a

3 and d

4 and c

1.b 2.a 3.d 4.c I hope this helped u

Please help will give brainliest answer

Answers

h=w=4w^3
l=5w^2-3w-4
A=w•l
A=4w^3(5w^2-3w-4)
A=20w^5-12w^4-16w^3
Good luck

5th grade math. correct answer will be marked brainliest.

Answers

Answer:

5 1/2 - 2 1/2 = 3

5 3/7 - 2 1/2 = 41/14 = 2 13/14

Step-by-step explanation:

Please help!!! I need to find these variables

Answers

Answer:

spanish?

Step-by-step explanation:


Six friends are seated in a restaurant at a rectangular table.
There are 3 chairs on each side. Adam and Diego do not have anyone sitting
on their right, and Claudia and Braden do not have anyone sitting on their left.
Adam and Braden are not sitting on the same side of the table.
If Ethan is not sitting next to Diego, who is seated immediately to the left of Felix?


do your magic guys

Answers

it might be claudia but i need more information im not sure take this with a grain of salt!!

Answer:

Braden

Step-by-step explanation:

So if you were to draw this out on a piece of paper going one person at a time or just doing it in your head. You have a table where the seating goes as followed

Adam, Ethan, Claudia

--------------------------------

Braden, Felix, Diego

This seating chart works for everything about this question and as per usual if I'm wrong flame me

If 1/4 of a pound costs $3,
how much is 1 pound?​

Answers

Answer:

$12

Step-by-step explanation:

Answer: $12

Step-by-step explanation: 3x4=12

6500 divide by 100. step by step​

Answers

Answer:

6500 / 100 = 65

Step-by-step explanation:

if you are dividing a number that has zeros by 10/100/1000... you can cancel out the zeros to find the answer.

can someone evaluate this expression i will give brainliest

Answers

Answer:

82

Step-by-step explanation:

[tex]4^3 + \frac{96}{8} \cdot 5 - 42 = 64 + 12\cdot 5 - 42 = 64 + 60 - 42 = 82[/tex]

Answer:

82

Step-by-step explanation:

PEMDAS

[tex]4^{3}[/tex] + [(96 ÷ 8) x 5] - 42

[tex]4^{3}[/tex] + [(12) x 5] - 42

4^3 + (60) - 42

64 + 60 - 42

124 - 42

82

hope this helps :)

Andera worked 11 hour and 25 minutes last week at her job after school. How many minutes did she work?

Answers

Answer:

685

Step-by-step explanation:

11 hours = 660 minutes

660 + 25

what is the tenth term in the sequence?

Answers

Answer is 5 , you substitute the letter n with the term position which in this case is tenth

Mark as brainleast plzzz

In a basketball game, Jaime scored 5 points less than twice the number of points Luis scored. Luis scored 8 points. How many points did Jaime score?

Answers

Answer:

Heyy I hope this helps

The answer is 11

Step-by-step explanation:

8×2

=16-5

=11

Will mark Brainliest! What is the value of P. Thank you!

Answers

Answer:

question of number 10 is 3

50 POINTS! QUICKLY Are the pairs of variables x and y the solutions to the equation x^2–2y=7?

1. (5,8)
2. (-1,-3)
3. (-4,-11.5)
4. (1.2, -2.78)

These are all yes and no questions!

Answers

Hi there!

[tex]\large\boxed{(5,8) \text{ and } (1.2, -2.78)}}[/tex]

We are given the equation:

x² - 2y = 7

To verify if each ordered pair is apart of the function, we can plug in their respective x and y values:

1. (5)² - 2(8) = 7

25 - 16 = 9 ≠ 7. This is NOT correct.

2. (-1)² - 2(-3) = 7

1 + 6 = 7. This is correct.

3. (-4)² - 2(-11.5) = 7

16 + 23 = 39 ≠ 7. This is NOT correct.

4. (1.2)² - 2(-2.78) = 7

1.44 +5.56 = 7. This is correct.

Thus, only 1 and 4 are the correct answers.

No yes no yes

:)

Brainliest please! <3 i will give you brainliest and 5 free points if you do! I will post the free answers problem, it will be called

“(1 + 1)-2” and it will have your username!

In circle O, central angle COD has a measure of 48. Find the measure of arc BC. In your final answer, include all your work ​

Answers

Answer:

Measure of arc BC = 132°

Step-by-step explanation:

Measure of the central angle COD = 48°

Therefore, measure of arc AB = 48°

Since, segment AC is a diameter and central angle for a diameter is 180°.

Measure of major arc ABC = 180°

measure of arc AB + measure of arc BC = 180°

48° + measure of arc BC = 180°

Measure of arc BC = 180° - 48°

                                = 132°

Find the volume of the cone th=20 in and r=8 in. Solve in terms of pi and round off the decimal to the
nearest tenths.

Answers

Answer:

426.7pi

Step-by-step explanation:

V = 1/3 pi r2h

1/3 × 22/7× 8 × 8 × 20

426.7 pi

(fractions 5th grade) 3/9 + 2/3

Answers

Answer:

1

Step-by-step explanation:

Simplify 3/9 by 3 -> 1/3

Now that both fractions have the same denominator, you can add them.

1/3 + 2/3 = 3/3 or 1

On a coordinate plane, 4 points are plotted. The points are (1, 48), (2, 12), (3, 3), (4, 1).
Determine the explicit formula for the geometric sequence represented by the graph.

f(x) = (one-fourth) Superscript x
f(x) = 48 (one-fourth) Superscript x minus 1
f(x) = (4)x
f(x) = 48(4)x – 1

Answers

Answer:

f(x)=48 (4)x-1 это просто

Answer:

It is in Fact B.

Step-by-step explanation:

I Took this on Edge and it is right, if you have this question, then it is B.

Please answer asap I need help

Don't take points or I will report

Do good and I will mark branist

There 5 photos

Answers

you can right click inspect and see the correct answer

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